Exhaust pipe and boiler tube collapser and puller



May 6, 1941. o. KOUBIA 2,241,207

EXHAUST PIPE'AND BOILER .TUBE COLLAPSER AND FULLER Filed Feb. 15, 1940INVENTOR 0820 Kouab Patented May 6, 1941 EXHAUST PIPE AND BOILER TUBECOLLAPSER AND FULLER Otto Kouba, North Bergen, N. J Application February15, 1940, Serial No. 319,069

6 Claims.

This invention relates to new and useful improvements in an exhaustpipeand boiler tube collapser and puller.

More specifically, the invention proposes the construction of a devicefor aiding in removing the exhaust pipes of automobiles and boilertubes, characterized by a bar adapted to be positioned in asubstantially horizontal position and having a gripper member forencircling the pipe or tube to hold the bar in position thereon, and forpermitting the frontof the bar to be moved downwards to collapse the topwall of the pipe or tube to permit the device to obtain a grip thereon.

Still further it is proposed that the bar be extended in an alignedposition with the axis of the pipe or tube in the collapsed positionthereof for permitting the bar to be pulled outwards for disengaging thepipe or tube from the respective object to which it is attached.

Still further it is proposed to characterize the gripper member by achain having one of its ends securely attached to said-bar and the otherof its ends removably attached thereto in a manner to permit the same tobeconveniently attached to the end of the'boiler tube or exhaust pipe.

Still further it is proposed to provide the bar with a plurality of tipportions to provide a longer length about which the barmay'be pivoted,and which are adapted to be removed to shorten the length of the bar topermit the same to be more conveniently used in a limited amount ofspace.

Still further it is proposed to provide a means for adjustably mountingthe gripper member in various positions along the end portion of the barto permit the gripper element to be adjusted to meet the particularrequirements of the job at hand. I

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure;

Fig. 1 is a perspective view of an exhaust pipe and boiler tubecollapser and puller constructed according to this invention.

Fig. 2 is a plan view of Fig l showing the collapser and puller upon theend of a portion of pipe.

Fig. 3 is an end elevational view looking in the direction of the line3-3 of Fig. 2.

Fig. 4 is a side elevational viewlooking in the direction of the line4-4 of Fig. 2.

Fig. 5 is an elevational view of an exhaust pipe and boiler tubecollapser and puller constructed in accordance with this invention.

Fig. 6 is a sectional view on the line 66 'of Fig. 5.

Fig. 7 is an enlarged detailed view of a portion of a collapser andpuller constructed according to a still further modification of theinvention.

Fig. 8 is a sectional view on the line 8-8 of Fig. '7.

Fig. 9 is a view similar to Fig. '7 but illustrating a furthermodification of the invention.

Fig. 10 is a view looking in the direction or the line Ill-A0 of Fig. 9.

Fig. 11 is an elevational view of a collapser and puller constructedaccording to a still further modification.

Fig. 12 is a view looking in the direction of the line l2-I2 of Fig. 11.

The exhaust pipe and boiler tube collapser and puller, according to thisinvention, includes a bar II! which is adapted to be positioned in asubstantially horizontal position upon the end of an exhaust pipe orboiler tube II. The bar I0 is preferably constructed of metal and isprovided with an upturned front end portion Ill about which the bar isadapted to be pivoted to assume a position parallel with the axis of thepipe or tube H as shown in Fig. 4.

A gripper member is mounted on the bar l0 adjacent the upturned frontend Ill and. is adapted to encircle the pipe or tube H. This gripperelement comprises a double headed bolt l2 having its intermediateportion securely ce- .mented to the bar I0 intermediate of its ends.

A length of chain I3 is provided at one end with a ring I3 securelymounted on the bolt l2 or one side of the bar Ill. The other end of thechain [3 is provided with a hook I3 which is adapted to be engaged uponthe bolt 12 on the other side of. the bar l0.

The operation of this form of the invention is as follows:

For removing the exhaust pipe of an automobile or a boiler tube theupturned end Ill is rested on the tip of the pipe or tube II in asubstantially horizontal position. The hook I3 is removed. from the boltl2 so that the chain I3 may be engaged across the bottom or the tube Hand upwards along the side thereof ll in position.

to be reengaged upon the bolt 12 as shown in Figs. 2 to 4. A bar I isthen pivoted downwards to assume a position parallel to the axis of theipe or tube I l causing the top wall thereof to be collapsed as shown inFigs. 3 and 4 so that the gripper member will take a secure hold of theend of the pipe or tube ll so that when the bar I0 is pulled outwardsthe pipe or tube will move therewith and be disengaged from therespective object to which it is attached.

According to the'modification of the invention shown in Figs. 5 and 6the ring l3 of the chain I3 i passed through a bolt I I which is in turnpassed through an opening I'll .formed in the bar l0 adjacent the turnedend 10 thereof. A flange W is formed on the bolt I4 adjacent the endthrough which the ring l3 passes and is adapted to contact one face ofthe bar to. The other end of the bolt l4 carries a nut l5 which isadapted to be clamped against the face of the bar ID for connecting theend of the chain l3 to the bar andfor permitting the chain l3 to beremoved therefrom when desired. The free end of the chain I3 carrie ahook .13 which is adapted to be engaged with the ring 13 of the chain I3after being passed around the pipe or tube I I for holding the chain inposition thereon.

The upturned end Ill of the bar I0 is provided with a plurality ofremovable tip portions w each of which is provided with a reducedshoulder portion 16 provided with threads and which is adapted to bethreadedly engaged .into a receiving socket H formed in the adjacent endof its next adjacent tip portion IU or the bar i0. These tip portions itprovide a greater surf-ace about which the bar Ill may be pivoted andare adapted to be removed when the :amount of space about the end of thepipe being removed lirnits their use for permitting the puller to beconvenient-ly used to remove pipes and tubes regardless of the amount ofspace around the tube.

In use the end of the bolt I4 towhich the ring [3 is attached will diginto the pipe or tube H while being collapsed for permitting theibar tomore securely grip the end thereof.

According to the modification of the inven-- tion shown in Figs. '7 and8 the construction of the collapser and puller is similar to thatpreviously described except that the ring 13 is securely mounted inposition between .a'pa-ir of upwardly extending lugs l8. These lugs I'3extend from the end portions of a pair of semi-circular It. The bolt 14is provided with a square head M having a plurality of laterallyextending serrations 22 which are adapted to cooperate'with similarlyextended serration 23 formed on the adjacent face of the bar I0 oneither side of the slot 21 in holding the bolt H in position-on thebar-l0. -A nut is threadedly engaged on the bolt Hf and is adapted tourge the bolt Hf into a position into which the serrations 22 and 23will beengaged with each other for holding the bolt Thi form of theinvention is also provided with reinforcement struts for reinforcing theend portion Hi and to compensate for the weakening effect caused thereinby forming the same with the slot 2|. This means comprises a pair ofreinforcement struts 24 each of which is mounted upon one side of thebar l0. Each strut 24 comprises a pair of separate section 24 arrangedin end alignment. The outer ends of the sections 24 are securelyattached to the side walls of the bar i0 adjacent opposite'ends of theslot 2|. These ends are secured in position by means of rivets 25. Theadjacent ends of the sections 24 :are provided with threads extended inopposite directions, and a turn buckle 26 is threadwhichhas itsfree ends21% directed upwards and spaced from each other to receive the endportion l li of the bar to as shown in Fig. 12. The ends 21? oi thestrap. 2'! are provided with a plurality of ver-tically aligned openings28 and the end portion l0 of the bar It! is provided with aplurality ofopenings 29. A bolt 30 is adapted to be passed through an aligned set ofthe opening 28 and 29 for pivotally mountingthe bar on the strap 2''!and for causing the strap 21 to be securely engaged about the end of thepipe or tube H. In other respects this form of the invention is similarto th previous forms.

While I have illustratedand described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to the precise constructions herein disclosed and the right Iis reserved to allchanges and modifications com- .ing within the scope of the invention asdefined i-n'the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:

of said chain and'passing through an elongated longitudinally extendedslot formed in said bar and means for holding said bolt 'in'variousfixed positions along the length of said slot.

" '2. exhaust pipe and boiler tube collapser and puller, comprising abar adaptedto be positioned in a substantially horizontal position andhaving an upwardly curved front end portion, and a gripper member forencircling a pipe or "tube and mounted on said curved front endporpositions along the length of said slot, and struts for reinforcingthe end portion of said bar in the vicinity of said slot.

3. An exhaust pipe and boiler tube collapser and puller, comprising abar adapted to be positioned in a substantially horizontal position andhaving an upwardly curved front end portion, and a gripper member forencircling a pipe or tube and mounted on said curved front end portion,and removable tip portions mounted on said bar for shortening the lengthof said front end portion to permit said bar to be used for removingpipes and tubes where the space about the end of said pipe or tube islimited.

4. A device of the class described, comprising a bar having an upwardlycurved front end portion, a bolt extended through an elongated slotformed in said bar in the vicinity of said upwardly curved front endportion, a length of chain having one end secured to said bolt forming aflexible gripping member for encircling the end of a length of pipe ortube, and means for securing said bolt in various adjusted positionsalong the length of said slot.

5. A device of the class described, comprising a bar having an upwardlycurved front end portion, a bolt extended through an elongated slotformed in said bar in the vicinity of said upwardly curved front endportion, a length of chain having one end secured to said bolt forming aflexible gripping member for encircling the end of a length of pipe ortube, and means for securing said bolt in various adjusted positionsalong the length of said slot, comprising a nut threadedly engaged uponthe end of said bolt and engageable against an adjacent face of saidbar, and means for preventing said bolt from slipping along the lengthof said slot when said nut is tightly engaged into position.

6. A device of the class described, comprising a bar having an upwardlycurved front end portion, a bolt extended through an elongated slotformed in said bar in the vicinity of said upwardly curved front endportion, a length of chain having one end secured to said bolt forming aflexible gripping member for encircling the end of a length of pipe ortube, and means for securing said bolt in various adjusted positionsalong the length of said slot, comprising a nut threadedly engaged uponthe end of said bolt and engageable against an adjacent face of saidbar, and means for preventing said bolt from slipping along the lengthof said slot when said nut is tightly engaged into position, comprisingserrations formed on the inside face of the head of said bolt andengageable with complementary serrations formed on the adjacent face ofsaid bar on either side of said slot.

OTTO KOUBA.

